Help me Publish and Promote my Book

In 2013 I completed my life's work a book that contains the details of my life. The book is an inspirational biography that documents some hard events throughout my lifetime meant to inspire others to keep moving forward. I was fortunate to be approved for a publishing contract with Page Publishing in New York, New Yort but unfortunately at this time do not have the funding to promote my novel for effective distribution. I really want to have my book out on shelves and ready for e-book distribution before the spring is out. I am a full time graduate student, single mom, and i work full time and put whatever i can towards my books PR campaign but it seems like my contributions are not enough. please help me to supercharge my books PR campaign so it can reach the masses and inspire everyone.